Original author(s)Microsoft
Developer(s)Jason Allor,
Andy Reeves,
Chris Dahlberg
Stable release
5.0.6329.1 / April 30, 2017; 7 years ago (2017-04-30)
Written inC#
Operating systemMicrosoft Windows
Platform.NET Framework
TypeStatic code analysis tool
LicenseMicrosoft Public Licence

StyleCop is an open-source static code analysis tool from Microsoft[1] that checks C# code for conformance to StyleCop's recommended coding styles and a subset of Microsoft's .NET Framework Design Guidelines. StyleCop analyses the source code, allowing it to enforce a different set of rules from FxCop (which, instead of source code, checks .NET managed code assemblies).[2][3] The rules are classified into the following categories:

StyleCop includes both GUI and command-line versions of the tool. It is possible to add new rules to be applied.

StyleCop was originally developed by Jason Allor as a Microsoft internal tool, and was released externally as an open-source project in April 2010 on CodePlex.

StyleCop 4.7.55 (November 10, 2016) is compatible with Visual Studio 2008, 2010, 2012, 2013, and 2015.[4] (Microsoft Visual Studio Extension)

StyleCop began a move to GitHub in December 2014,[5] and the last change applied to the CodePlex edition was November 11, 2016.[6]

StyleCop 5.0.6329.1 (April 30, 2017) works with Visual Studio 2012, 2013, 2015, and 2017.[7] (Windows Installer)

Development is stopping. A named successor is StyleCopAnalyzers, for Visual Studio 2015 and later.[8]

See also


  1. ^ "A Brief History Of C# Style". Retrieved 2016-07-19.
  2. ^ Patton, Tony (June 24, 2011). "Maintain code consistency with Microsoft StyleCop". Blogs / Software Engineer. TechRepublic. Retrieved December 10, 2011.
  3. ^ Chinery, Clive (July 30, 2009). "8 More Useful Tools for ASP.NET". ASP .Net. Server-Side Magazine. Retrieved December 10, 2011.
  4. ^ StyleCop (old CodePlex site)
  5. ^ GitHub API response for StyleCop repository
  6. ^ retrieval of StyleCop on CodePlex source history
  7. ^ StyleCop - Visual Studio Marketplace
  8. ^ StyleCop repository on GitHub